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Allowance for Doubtful Accounts - Summary of the Activity in the Allowance for Doubtful Accounts (Detail) - Allowance for doubtful accounts [Member] - USD ($)
3 Months Ended
Jul. 28, 2024
Jul. 30, 2023
Valuation and Qualifying Accounts Disclosure [Line Items]    
Beginning balance $ 356,000 $ 342,000
Provision for bad debts 57,000 129,000
Write-offs, net of recoveries   (30,000)
Ending balance $ 413,000 $ 441,000